Which exponential equation is equivalent to the logarithmic equation below? log478=a A. 478^10 = a
B. a^10 = 478
C. 478^a = 10
D. 10^a = 478

I think the answer is D

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post